Final answer:
The Master Driver must assess the number of qualified drivers, schedule urgent training sessions for unqualified personnel, ensure resources are available, and communicate effectively to ensure preparedness for the field training exercise.
Step-by-step explanation:
As the Master Driver preparing for a pending field training exercise, you should first ensure you have an accurate list of currently qualified drivers and review any upcoming expiration dates on their qualifications. If there's a shortage, you should schedule additional training sessions and qualification tests as urgently as possible, ensuring that all resources needed for the training (vehicles, fuel, instructors, etc.) are available and in good condition. It is also important to coordinate with the training schedule planners to prioritize driver training, keeping in mind the time needed for the drivers to rest before the exercise. Being proactive and communicating clearly with your team and superiors will help ensure that all drivers are prepared and qualified for the field training exercise.